Table III. Patients in the three groups.

Group	n	%	Operative technique
Group A	156	66.3	Omentoplasty*
Group B	47	20.0	Omentoplasty combined with other techniques†
Group C	32	13.6	Other techniques without omentoplasty

* Including laparoscopic omentoplasty.

†Other techniques = capitonnage, external drainage, introflexion.